Update git submodules

* Update frameworks/base from branch 'main'
  to 51e8133dcff4aef934d16c422889290bdb8a5183
  - Merge "Remove @FlaggedApi for android.os.Build.VANILLA_ICE_CREAM" into main
  - Remove @FlaggedApi for android.os.Build.VANILLA_ICE_CREAM
    
    main is always VIC+ now, remove the flagging that kept VANILLA_ICE_CREAM
    out of the UDC based releases.
    
    Bug: 264658905
    Test: builds
    Change-Id: Ib5fa827bedf6fd7de2b3c89fbf4a082f789ef556
    
1 file changed